Western blotting electrophoretic sequencing: First images with a room temperature CMOS detector

CMOS imaging technology can be applied to Chemiluminescence Western Blotting as a potential imaging alternative technology to using conventional film-emulsion. In this work the authors present a through investigation on the performance of CMOS Active Pixel Sensors for using in western blotting. Chemiluminescence labeling is a well established technique to detect proteins and presents several advantages compared with the fluorescence labeling. In fact it requires neither external illumination nor filtering optics and does not produce an inherently label-related background to correct. In this paper the first results of imaging a secondary antibody labeled with chemiluminescence reagents obtained with a CMOS sensor operating at room temperature are presented.